Re: kern/44969: vmem_xalloc() don't search best-fit free segment in spite of VMEM_BESTFIT

To: gnats-bugs%NetBSD.org@localhost
Subject: Re: kern/44969: vmem_xalloc() don't search best-fit free segment in spite of VMEM_BESTFIT
From: yamt%mwd.biglobe.ne.jp@localhost (YAMAMOTO Takashi)
Date: Tue, 12 Jul 2011 00:17:02 +0000 (UTC)

hi,

>>Description:
> Though you call vmem_xalloc() with VM_BESTFIT(allocation strategy) , you find 
> that vmem_xalloc() don't search best-fit free segment. 
> VMEM_BESTFIT means that using the smallest free segment that can satisfy the 
> allocation.But current implementation use the free segment which is found at 
> first.(not search best-fit free segment)

it's an intended behaviour.
have you seen space efficiency problems due to this?

YAMAMOTO Takashi

References:
- kern/44969: vmem_xalloc() don't search best-fit free segment in spite of VMEM_BESTFIT
  - From: bybinary01

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